Geotechnical Earthquake Engineering and Soil Dynamics V
Effect of Cyclic Rotation of Principal Stresses on Liquefaction Resistance of Sands
Publication: Geotechnical Earthquake Engineering and Soil Dynamics V: Liquefaction Triggering, Consequences, and Mitigation (GSP 290)
ABSTRACT
Liquefaction susceptibility of loose sand subjected to different magnitudes of principal stress rotation under different initial stress states is evaluated. Hollow cylinder torsional shear tests were carried out on water pluviated Fraser River sand specimens hydrostatically consolidated to two different effective confining stresses. Cyclic loading was applied with constant amplitude cyclic deviator stress, but along stress paths which impose different magnitudes of principal stress rotation. Both axisymmetric and approximately plane strain loading conditions were simulated by fixing the intermediate principal stress parameter, at 0 or 0.4 respectively. Tests results show that weakest cyclic resistance is manifested when the principal stress direction is cyclically rotated between with respect to the axis of deposition. Irrespective of the different initial effective confining stress and intermediate principal stress parameter, the combination of high shear stress on the horizontal plane and the orientation of the plane of maximum shear stress with the bedding plane are found to be responsible for the weakest cyclic resistance.
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ACKNOWLEDGEMENTS
This research was supported by grants from the Natural Sciences and Engineering Research Council of Canada, Canada Foundation for Innovation, and the Ontario Innovation Trust. The financial support provided by Ontario Trillium Scholarship to the first author, and the technical assistance of Stanley Conley, Pierre Trudel and Jason Arnott are gratefully acknowledged.
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Information & Authors
Information
Published In
Geotechnical Earthquake Engineering and Soil Dynamics V: Liquefaction Triggering, Consequences, and Mitigation (GSP 290)
Pages: 182 - 190
Editors: Scott J. Brandenberg, Ph.D., University of California, Los Angeles, and Majid T. Manzari, Ph.D., George Washington University
ISBN (Online): 978-0-7844-8145-5
Copyright
© 2018 American Society of Civil Engineers.
History
Published online: Jun 7, 2018
ASCE Technical Topics:
- Continuum mechanics
- Design (by type)
- Dynamics (solid mechanics)
- Effective stress
- Engineering fundamentals
- Engineering mechanics
- Fluid mechanics
- Geomechanics
- Geotechnical engineering
- Hydrologic engineering
- Laboratory tests
- Load and resistance factor design
- Load factors
- Motion (dynamics)
- Rotation
- Shear resistance
- Shear stress
- Shear tests
- Soil liquefaction
- Soil mechanics
- Soil properties
- Soil stress
- Solid mechanics
- Stress (by type)
- Structural analysis
- Structural design
- Structural engineering
- Tests (by type)
- Viscosity
- Water and water resources
Authors
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